When Mercedes performed the world premiere of the new 2017 E-Class in Detroit in January, the only model they announced for the US launch was the E300 with a 241hp turbo’d 2-liter four-cylinder gasoline engine.

A couple of months later, the Germans took the wraps off the 396hp E43 AMG, which won’t be arriving in the States before early 2017, while also displaying the diesel-powered 192hp E220d (without specifying any plans) at the New York Auto Show in March.

We know for a fact that the E350e plug-in hybrid that shares its 2.0-liter turbocharged four gas engine and electric motor setup with the smaller C350e, will be among the choices given to US consumers in due time, as will the soon to be revealed, monstrous E63 and E63 S AMG with up to 612PS.

Carscoops reader John Ivy stumbled on an undercover prototype of the new Mercedes-Benz E-Class on a highway exit near Denver, where he took a quick shot of the car. We originally thought it might be the E350e PHEV, but upon closer inspection, we couldn’t see an outline for the electric socket cap under the right tail lamp.

Think you can decipher which version it is, or if you can’t, how about you tell us which powertrain from the European lineup would you like to see being offered here in North America?

Thanks to John Ivy for sharing the scoop!

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